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ASTM A372 Grade D Steel vs. EN 1.4849 Stainless Steel

Both ASTM A372 grade D steel and EN 1.4849 stainless steel are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade D steel and the bottom bar is EN 1.4849 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
4.5
Fatigue Strength, MPa 340
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 810
480
Tensile Strength: Yield (Proof), MPa 510
250

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1020
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
42
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.5
7.1
Embodied Energy, MJ/kg 20
100
Embodied Water, L/kg 48
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
18
Resilience: Unit (Modulus of Resilience), kJ/m3 700
160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
17
Strength to Weight: Bending, points 25
17
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 26
11

Alloy Composition

Carbon (C), % 0.4 to 0.5
0.3 to 0.5
Chromium (Cr), % 0
18 to 21
Iron (Fe), % 97.1 to 97.9
32.6 to 43.5
Manganese (Mn), % 1.4 to 1.8
0 to 2.0
Molybdenum (Mo), % 0.17 to 0.27
0 to 0.5
Nickel (Ni), % 0
36 to 39
Niobium (Nb), % 0
1.2 to 1.8
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.15 to 0.35
1.0 to 2.5
Sulfur (S), % 0 to 0.010
0 to 0.030